The committee's decision revealed the unsoundness of the report's assumptions.

Because the old staircase was unsound, we had to cordon off that wing of the building until repairs were made.

She stared into the unsounded depths of the old well, feeling as if ancient secrets hovered just beyond reach.

After the inspection, the old wooden beams were deemed unsounder than we had originally thought.

The committee overlooked several unsoundnesses in the report that undermined its conclusions.

The lagoon's depth was unsoundable, resisting every attempt to measure it with a sounding line.

She moved through the garden in an unsounding procession, like a shadow that forgot how to breathe.

The committee's conclusions were reached unsoundly, based on rumors rather than evidence.

Of all the explanations offered at the meeting, his was the unsoundest, riddled with logical errors and poor evidence.